Cooking-stove



UNITED STATES PATENT OFFICE.

DAVID G. STAFFORD, OF SYRACUSE, NEW YORK.

COOKING-STOVE.

Specification of Letters Patent No. 4,711, dated August 26, 1846.

To all whom t may concern:

Be it known that I, DAVID G. STAFFORD, of Syracuse, in the county ofOnandaga, and State of New York, have invented certain Improvements inCooking-Stoves; and I do vhereby declare the following to be a full andexact description of the same, reference being had to the accompanyingdrawings, making a part of this specification.

The nature of my invention consists in extending a hot air chamberentirely around the central portion of the oven of a cooking stoveseparating the fire chamber from the oven, and dividing the liuc spacesfrom the fire chamber into two equal parts extending entirely around thesides of the oven, which arrangement diffuses the heat from the firechamber, prevents its centralization, and causes every portion of theoven to be equally acted upon, and by means of a valve communicatingwith the air chamber, the temperature of the oven can be reduced andregulated by the admission of cold air.

In the accompanying drawings Figure l4 is a perspective elevation of myimproved cooking stove; Fig. 2 is a perspective elevation of the same,with some of its plates removed for the purpose of showing the internalarrangement of the lues and air chamber; Fig. 3 is a perspectiveelevation of the rear of the stove, the rear and top plates beingremoved; Fig. 4 is a perspective view of the hearthplate of the firechamber.

A, A, are the division plates that surround the oven O, and separate theair chamber F, from the lue spaces E, E; the division plates divergefrom a point at the rear end of the upper oven plate and eX- tendentirely aro-und the oven, distant from each other about one-third thewidth of the stove.

H, is the hearth plate of the re chamber, which rests upon the divisionplates A, A, and on the ledges i, z', on the side plates of the stove,7c, Z, are the lire doors of the stove. G, is the bridge plate restingon the rear end of the hearth plate H, and forming the rear end of theire chamber.

The smoke and hot gaseous products of combustion pass from the firechamber to the chimney or discharge flue through the side flues E, E, inthe direction of the arrows, viz: From the lire chamber the smoke andame passes over t-he bridge plate G, (on each side of the'centraldischarge flue D,) descend the side flues E, E, at the rear of t-he ovenwhich continues under the oven, up the front and over the top of thesame, (between the hearth plate and the upper oven plate) and arebrought together and discharge themselves into the central discharge.flue D, through theaper- 65 ture B. Gr', is a sliding valveclosing theapertures i, i, in the central flue D, communicating with the firechamber, through which the gaseous products of combustion may be allowedto pass directly to the discharge flue D, when it is not desired to heatthe oven, instead of being discharged through the lues E, E, and heatingthe oven in their passage.

The air chamber F, passes from the union of the division plates A, A,(at the rear end of the upper plate of the oven), and passes entirelyaround the oven between said plates, and leads into the centraldischarge flue D. H', is a sliding valve in the V80 front plate of thestove communicating with the air chamber F, for the purpose ofregulating and reducing the temperature of the oven. by the admission ofcold air.

Vhat- I claim as my invention and desire to secure by Letters Patent,is-

The extension of the hot air chamber F, entirely around the centralportion of the oven for the purposes herein set forth, viz.: dividingthe flue space leading from the lire chamber into two lateral parts E,E, and separating the lire chamber from contact with the oven, for themore equally diffusing heat to every portion of the same, and thereducing and regulating the tem- 95 perature of the oven by means of thevalve H, substantially as herein set forth.

DAVID G. STAFFORD.

Vitnesses JOHN H. VooRHEns, AMos STAFFORD.

